alue) ??????????????????????? If el.Attributes("key").InnerXml = "WindowsAuthentication" Then _ ?????????????????????????? Me.cbWindowsAuthentication.Checked = Convert.ToBoolean(el.Attributes("value").Value) ??????????????????? Next ??????????????? End If
??????????? End If ??????? Next
??? End Sub
??? ''''********************************************************************************************** ??? ''''** Class:????????? GetDatabases ??? ''''** ??? ''''** Description:??? ??? ''''********************************************************************************************** ??? Private Sub GetDatabases()
??????? Try
??????????? Dim oDatabase As New Database ??????????? cboDatabase.BeginUpdate() ??????????? Cursor.Current = Cursors.WaitCursor
??????????? Configuration.Server = txtServerName.Text ??????????? Configuration.Database = "master" ''''cboDatabase.Text ??????????? Configuration.Password = txtPassword.Text ??????????? Configuration.UserName = txtUserName.Text ??????????? Configuration.WindowsAuthentication = cbWindowsAuthentication.Checked
??????????? Dim rd As SqlClient.SqlDataReader ??????????? rd = oDatabase.GetDatabases ??????????? While rd.Read() ??????????????? cboDatabase.Items.Add(rd.GetString(1)) ??????????? End While ??????????? rd.Close() ??????????? cboDatabase.Sorted = True
??????? Catch AComException As System.Runtime.InteropServices.COMException
??????????? cboDatabase.DataSource = Nothing ??????????? cboDatabase.Items.Clear() ??????????? cboDatabase.Text = ""
??????????? MsgBox("Could not connect to " & txtServerName.Text & ".", MsgBoxStyle.Exclamation, _ ??????????????? "SQL Connection Error") ??????? Catch e1 As Exception ??????????? MsgBox(e1.Message)
??????? Finally
??????????? cboDatabase.EndUpdate() ??????????? Cursor.Current = Cursors.Default
??????? End Try
??? End Sub
??? Private Sub btnOk_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnOk.Click ??????? Dim xmlDoc As XmlDocument ??????? Dim topM As XmlNodeList ??????? xmlDoc = New XmlDocument ??????? xmlDoc.Load("Web.config") ??????? topM = xmlDoc.DocumentElement.ChildNodes ??????? For Each element As XmlElement In topM ??????????? If element.Name.ToLower() = "appsettings" Then ??????????????? Dim _node As XmlNodeList = element.ChildNodes ??????????????? If _node.Count > 0 Then ??????????????????? For Each el As XmlElement In _node ??????????????????????? If el.Attributes("key").InnerXml = "ServerName" Then _ ?????????????????????????? el.Attributes("value").Value = txtServerName.Text ??????????????????????? If el.Attributes("key").InnerXml = "DataBaseName" Then _ ?????????????????????????? el.Attributes("value").Value = cboDatabase.Text ??????????????????????? If el.Attributes("key").InnerXml = "UserName" Then _ ?????????????????????????? el.Attributes("value").Value = SecurityService.SymmetricEncrypt(txtUserName.Text) ??????????????????????? If el.Attributes("key").InnerXml = "Password" Then _ ?????????????????????????? el.Attributes("value").Value = SecurityService.SymmetricEncrypt(txtPassword.Text) ??????????????????????? If el.Attributes("key").InnerXml = "WindowsAuthentication" Then _ ????????????????????????? el.Attributes("value").Value = Me.cbWindowsAuthentication.Checked.ToString() ??????????????????? Next ??????????????? End If
??????????? End If ??????? Next
??????? '''' Write XML to file ??????? xmlDoc.Save("Web.config") ??????? Me.Close()
??? End Sub
??? Private Sub cbWindowsAuthentication_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cbWindowsAuthentication.CheckedChanged
??????? If cbWindowsAuthentication.Checked Then ??????????? txtUserName.Text = "" ??????????? txtPassword.Text = "" ??????????? txtUserName.Enabled = False ??????????? txtPassword.Enabled = False ??????? Else ??????????? txtUserName.Enabled = True ??????????? txtPassword.Enabled = True ??????? End If
??????? Configuration.WindowsAuthentication = cbWindowsAuthentication.Checked ??? End Sub
??? Private Sub btnCancel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCancel.Click ??????? If MsgBox("Are you sure you want to exit w/o configuring the database?", MsgBoxStyle.OKCancel) = MsgBoxResult.OK Then ??????????? Me.Close() ??????? End If ??? End Sub ??? Private Sub txtPassword_LostFocus(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtPassword.LostFocus ??????? If cbWindowsAuthentication.Checked Or (txtUserName.Text <> "" And txtPassword.Text <> "") Then ??????????? GetDatabases() ??????? End If ??? End Sub End Class
SecurityService类是用来加/解密的,这样用户就无法直接从Web.config中看到数据库用户和密码了。
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